An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Lam YH, Yeung WS, Tang MH, Ng EH, So WW, Ho PC.Lam YH, et al. Among authors: ho pc.Hum Reprod. 1999 Aug;14(8):2120-3. doi: 10.1093/humrep/14.8.2120.Hum Reprod. 1999.PMID: 10438437
Ng EY, Yeung WS, Ho PC.Ng EY, et al. Among authors: ho pc.Hong Kong Med J. 2000 Dec;6(4):368-74.Hong Kong Med J. 2000.PMID: 11177158Free article.Clinical Trial.
Chan YF, Ho PC, So WW, Chan SY, Chan ST.Chan YF, et al. Among authors: ho pc.J In Vitro Fert Embryo Transf. 1989 Aug;6(4):218-21. doi: 10.1007/BF01132868.J In Vitro Fert Embryo Transf. 1989.PMID: 2693558